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An analysis of historical national reports of inland capture fisheries statistics in the Asia-Pacific region (1950-2007)

Year of publication 1950

Product type Document

Edition 1

Synopsis (short abstract)   Lymer D. & S. Funge-Smith (2009). An alysis of historical tiol reports of inland capture fisheries statistics in the Asia-Pacific region (1950-2007). FAO Regiol Office for Asia and Pacific. RAP Publication 2009/18, 18 pp.      The purpose of this paper is to alyse whether the apparent trend in inland capture fishery production in the Asia-Pacific region since 1950 according to FAO statistics is reflective of the growth in inland fisheries or whether it is influenced by changes in statistical r eporting practices. The objective of this alysis was to identify large changes (between years) that are significant for a reporting country and to investigate whether these changes also affect the regiol change of that year (for the countries of the Asia-Pacific region). An alysis was undertaken, albeit making several unsubstantiated assumptions, which provided indications that reporting practices have indeed changed and that historical catches were probably higher. The review suggests that the regiol trend of continually increasing production may be misleading and hides a period of limited growth in production. The effect of the trend line when compared against growth in populations of the countries reviewed indicates that per capita fish availability rose up to a peak in 1975, but subsequently declined until the early 1990’s. This has more recently started to increase again, possibly due to a number of factors particularly stock enhancement programmes. The results presented in this s tudy have implications for policy and our understanding of the status of inland fisheries in the region, as the review concludes that even where figures are adjusted upwards, these may still not be indicating increasing fishery production in some countries, but rather, the readjustments are reflecting previous systematic under-estimates and that it is possible that some inland fisheries may still have a declining trend. 

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    Inland capture fisheries in the Asia-Pacific region are undoubtedly some of the most important fisheries of the world and are feeding and employing millions of people in rural and riparian areas throughout eastern, southeastern and southern Asia. The massive, dispersed nature of many inland fisheries activities has challenged systems of information and data collection ever since trying to account for these fisheries as early as the 1700s. Since 1950, FAO has requested its member countries to rep ort inland fisheries capture statistics as part of their fisheries reporting to the Organization. From these reported data, there is an apparent increasing trend in the production of global and regional inland fisheries during the period 1950-2007. However, it is not clear when viewing aggregated statistics whether this is due to an aggregated increase in production from all countries' inland fisheries, or due to large, occasional increases from individual countries. Moreover, there are many ins tances of unreported (or under-reported) catch in inland fisheries owing to the diffuse and small-scale nature of individual fisheries. This document presents the statistics for the region and examines the way in which large changes in inland catch data were identified and how the catch data were adjusted. The results of the study offer insight into the implications for interpreting trends in inland fisheries.
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